Notices
Electric Pylon Racing Discuss all aspects of electric pylon racing here.

Battery Question

Old 03-16-2012, 10:21 AM
  #1  
Thread Starter
 
Join Date: Jan 2004
Location: Silverdale, WA
Posts: 93
Likes: 0
Received 0 Likes on 0 Posts
Default Battery Question

Being new to electrics (I'm been flying glow for many years), I have a question on batteries. My club is going to start a pylon race using slow sticks to keep it sample and fun. My question is which type of 3S Li Po would be best: a 1,800mAh 30C, a 1,800mAh 40C, a 2,200mAh 30C or a 2,200mAh 40C? The rules require the same motor and prop size on all planes. More generic questions would be, what is the advantage, if any, of (1) higher mAh capacity and the advantage, if any, of higher C discharge ratings?

Thanks!!
Old 03-24-2012, 07:04 AM
  #2  
 
Join Date: Feb 2009
Location: Burlington, KY
Posts: 86
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Battery Question


ORIGINAL: Mad Mad Max

Being new to electrics (I'm been flying glow for many years), I have a question on batteries. My club is going to start a pylon race using slow sticks to keep it sample and fun. My question is which type of 3S Li Po would be best: a 1,800mAh 30C, a 1,800mAh 40C, a 2,200mAh 30C or a 2,200mAh 40C? The rules require the same motor and prop size on all planes. More generic questions would be, what is the advantage, if any, of (1) higher mAh capacity and the advantage, if any, of higher C discharge ratings?

Thanks!!
Great questions. Glad to hear that your club is starting an electric racing circuit.

You will find that electrics is simple math. For example:

1800 mAh = 1.8 Ah. 1.8 X 30C=54 amps. @ nominal voltage of 11.1v x 54amps =599.4 watts.
1800 mAh = 1.8 Ah. 1.8 X 40C=72 amps. @ nominal voltage of 11.1v x 72amps =799.2 watts.
2200 mAh = 2.2 Ah. 2.2 X 30C=66 amps. @ nominal voltage of 11.1v x 66amps =732.6 watts.
2200 mAh = 2.2 Ah. 2.2 X 40C=88 amps. @ nominal voltage of 11.1v x 88amps =976.8 watts.

You can see the effect of performance with capacity and "C" rating. Most batteries will maintain nominal voltage under "C" rating current. Cost can also come into play here as well to see what you are paying per mAh, or per weight unit, or per watt available. You will also need to consider what your motor and ESC are capable of. This all plays into the equation.

Look forward to hearing how this goes for you.

Archie Adamisin
Muncie, IN

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On


Thread Tools
Search this Thread

Contact Us - Manage Preferences Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.